Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890120 | Thermal transfer type printing device capable of selecting ink sheets | Eiichi Sasaki, Tetsuo Watanabe | 1989-12-26 |
| 4877498 | Method for producing a metal salt by electrolysis | Kenichi Fukuda, Yasuhiro Kurauchi, Masaharu Doi, Tetsuya Suematsu | 1989-10-31 |
| 4852633 | Immersion nozzle for continuous casting of steel | Toshio Teshima, Tooru Kitagawa, Mikio Suzuki, Toshio Masaoka, Kazutaka Okimoto | 1989-08-01 |
| 4806987 | Projection-exposing apparatus | Koichi Matsumoto, Tsutomu Takai, Masaichi Murakami, Kyoichi Suwa | 1989-02-21 |